I've never been approached by a salesman at a RV show. They are usually tied up with folks that actually seek them out to discuss and possibly purchase. I don't have a problem paying a few bucks for an afternoon of entertainment and window shopping RV's. Only venue I know of that you can get a look at a lot of different brands and models. Dealer stock is generally limited, at least where Im at.
I chuckle at the idea of asking a dealer/salesman for refund of entry fees if I purchase something. So, Im gonna spend 20K or so, on an RV, but Im gonna ask dealer to reimburse me $20 bucks?
Mike